Tuner SR4T for Dreambox 800SE

zablotsky

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Please help me! I have Dreambox 800 SE (clone) with tuner Sunray SR4T. It have following trouble: sometimes, when I change channels, signal on output disappeared, although I see "normal level" of signal in infobar: 15-16 dB. After over-loading of Dream, signal is appeared till next change chanels. I measured voltages on 12 & 16 legs of "metal case", which placed on the top of PCB: 3,2 V (12 leg) & 1,15 V (16 leg) without signal. I think that this voltages are small. How make this voltages: 3,3 V & 1,25 V on PCB of SR4T? May be: who send me schematic diagrams for making this voltages?
 
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